Air conditioning device for motor vehicles

Claim 1

An air conditioning device for a motor vehicle, comprising: a. a pre-assembled casing comprising interconnected hollow shells adapted to be located between the front compartment and passenger compartment of the vehicle; b. means within said casing defining a front chamber, a mixing chamber and an air distribution chamber; c. an air intake communicating with the front chamber; d. a heater, through which hot coolant liquid flows in use of the device, housed in the mixing chamber; e. a motor-driven fan in the mixing chamber adjacent the heater; f. means defining in the casing a lower opening through which the air distribution chamber communicates with the passenger compartment; g. a hinged flap controlling air flow through said lower opening; h. a number of air ducts having directionally adjustable nozzles adapted to be located in the vehicle instrument panel, said air ducts communicating with the air distribution chamber; i. a transverse partition separating the front chamber from the mixing chamber; j. means deFining two superimposed openings in said partition; k. respective flap doors associated with said openings and controlling air flow therethrough, one of said openings communicating with the heater; l. a box located in and effectively isolated from the air distribution chamber; m. two superimposed control levers pivotable within said box about a common vertical axis and projecting through respective slots in said box; n. a tap controlling the flow of said coolant liquid through the heater; and o. means connecting said levers to the door cooperating with said one opening and to said tap.